To begin the celebration at 12:30 p.m., the Museum will present the 1957 NBC Opera Theatre telecast of Dialogues — sung in the language of the audience (here, English), as Poulenc wished. Following the two-hour screening will be an interview with cast and creative team members including Elaine Malbin (Blanche de la Force), Rosemary Kuhlmann (Mother Marie), David Lloyd (Chaplain), and Kirk Browning (director), moderated by Eric Myers. Other cast members in this made-for-television production include Leontyne Price (Mme. Lidoine, the New Prioress), Patricia Neway (Mme. de Croissy, the Old Prioress), and Judith Raskin (Sister Constance).

At 3:30 p.m., the Museum will screen the final 90 minutes of PBS's 1987 Live from the Met telecast of John Dexter's renowned Metropolitan Opera staging of Dialogues. The performance (again, sung in English) stars Maria Ewing (Blanche), R_gine Crespin (the Old Prioress), Florence Quivar (Mother Marie), Betsy Norden (Sister Constance), and Jessye Norman (the New Prioress). Afterwards there will be an in-person interview with Norman, moderated by Cori Ellison.

This event is free with Museum admission (suggested donation $10 for adults, $8 for seniors and students). The Museum of Television and Radio is located at 25 W. 52nd St. in midtown Manhattan. For more information, visit www.mtr.org.